Front portion of a motor vehicle



FIG. 1 is a perspective view of a front portion of a motor vehicle showing a first embodiment of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view of thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top view thereof.

The portion of the motor vehicle shown in broken lines is for illustrative purpose only and forms no part of the claimed design. 

The ornamental design for a front portion of a motor vehicle, as shown and described. 